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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2021/09/09 12:39:00 UTC
[jira] [Updated] (SPARK-36702) array_union should not produce
duplicated result
[ https://issues.apache.org/jira/browse/SPARK-36702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan updated SPARK-36702:
--------------------------------
Description:
{code:java}
select array_union(array(cast('nan' as double), cast('nan' as double)), array())
{code}
This returns [NaN, NaN], but it should return [NaN]
> array_union should not produce duplicated result
> ------------------------------------------------
>
> Key: SPARK-36702
> URL: https://issues.apache.org/jira/browse/SPARK-36702
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Wenchen Fan
> Priority: Major
>
> {code:java}
> select array_union(array(cast('nan' as double), cast('nan' as double)), array())
> {code}
> This returns [NaN, NaN], but it should return [NaN]
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